In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

Example Input: [header] How to fist bump [title] Ball your hand up into a fist. [step] Press the tips of your fingers into your palm so that your hand makes a fist. This will be the position that you keep your hand in for the bump. <sep> (A) Hold the fist up high enough to extend your palm to one side. Bend your wrist so that both fingers are pointing out, with the whites of your knuckles showing. (B) [title] Put your fist out in front of you. [step] Place your fist in front of your body with your knuckles facing up. (C) Make sure your palm looks nice and flat. Ideally, this hand should be neither thicker nor thinner than your fist. (D) [substeps] Whether you're with friends or with an opponent, the fist looks like a punching bag in a gym. The knuckles, the tips, and thumb look like a regular ring finger.
Example Output: B

Example Input: We see a rowing machine in a exercise room. a lady <sep> (A) picks up a machine and lifts it to her shoulder, then drops it. (B) starts putting her feet in the turning machine. (C) sits on the seat and pulls the cord of the rowing machine. (D) pushes a machine.
Example Output: C

Example Input: A little boy is inside a garage room. he <sep> (A) is using a can of hairspray and weaning his hair. (B) 's trying to play dodgeball with another man sitting on the ground. (C) is playing a large drum set while wearing headphones. (D) has several colored hoses attached to him by a machine.
Example Output:
C

